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/* $Id$ */
/*
libg3d - 3D object loading library
Copyright (C) 2005-2009 Markus Dahms <mad@automagically.de>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdio.h>
#include <string.h>
#include <locale.h>
#include <glib.h>
#include <g3d/types.h>
#include <g3d/stream.h>
#include <g3d/material.h>
#include "imp_vrml_v1.h"
#define VRML_FT_VRML 0x01
#define VRML_FT_INVENTOR 0x02
#define MAX_LINE_SIZE 2048
EAPI
gboolean plugin_load_model_from_stream(G3DContext *context, G3DStream *stream,
G3DModel *model, gpointer user_data)
{
yyscan_t scanner;
YY_BUFFER_STATE bufstate;
G3DMaterial *material;
gchar line[MAX_LINE_SIZE + 1], *buffer, *bufp;
guint32 ver_maj, ver_min, filetype, buflen;
memset(line, 0, MAX_LINE_SIZE);
g3d_stream_read_line(stream, line, MAX_LINE_SIZE);
if(strncmp(line, "#VRML", 5) == 0)
filetype = VRML_FT_VRML;
else if(strncmp(line, "#Inventor", 9) == 0)
filetype = VRML_FT_INVENTOR;
else {
g_warning("file '%s' is not a VRML file", stream->uri);
return FALSE;
}
/* FIXME: more than one space between VRML and Vx.x? */
ver_maj = line[7] - '0';
ver_min = line[9] - '0';
#if DEBUG > 0
g_debug("VRML: version %d.%d", ver_maj, ver_min);
#endif
setlocale(LC_NUMERIC, "C");
if((filetype == VRML_FT_INVENTOR) || (ver_maj == 1)) {
/* Inventor / VRML 1.x */
/* read complete file to buffer */
buflen = g3d_stream_size(stream) + 1;
buffer = g_new0(gchar, buflen);
bufp = buffer;
memset(buffer, 0, buflen);
memset(line, 0, MAX_LINE_SIZE);
while(!g3d_stream_eof(stream) &&
g3d_stream_read_line(stream, line, MAX_LINE_SIZE)) {
memcpy(bufp, line, strlen(line));
bufp += strlen(line);
}
material = g3d_material_new();
material->name = g_strdup("fallback material");
model->materials = g_slist_append(model->materials, material);
vrml_v1_yylex_init(&scanner);
vrml_v1_yyset_extra(model, scanner);
bufstate = vrml_v1_yy_scan_string(buffer, scanner);
if(bufstate) {
vrml_v1_yylex(scanner);
vrml_v1_yy_delete_buffer(bufstate, scanner);
}
vrml_v1_yylex_destroy(scanner);
g_free(buffer);
} else if(ver_maj == 2) {
g_warning("VRML 2 is not yet supported");
return FALSE;
} else {
g_warning("unknown VRML version %d.%d", ver_maj, ver_min);
return FALSE;
}
return TRUE;
}
EAPI
gchar *plugin_description(void)
{
return g_strdup("VRML 1.x & SGI inventor models.");
}
EAPI
gchar **plugin_extensions(void)
{
return g_strsplit("vrml:iv", ":", 0);
}
/* FIXME */
extern int yywrap(yyscan_t yyscanner);
int vrml_v1_yywrap(yyscan_t yyscanner) { return yywrap(yyscanner); }
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